Question

Сосновые доски имеют массу 3 тонны размер доски равен 400*20*2,5 см сколько досок в вагоне

Answer 1

1) 400 × 20 × 2,5 = 20000 см³
 
 Плотность равна 520 кг/м³
2) 520 ÷ 50 = 10,4 кг - масса одной доски. 
3) 3000 ÷ 10,4 = 288 штук всего досок.

Answer 2

Calculation of the Number of Boards in a Wagon

To calculate the number of boards that can fit in a wagon, we need to consider the size of the boards and the available space in the wagon.

Given: - Mass of each board: 3 tons - Size of each board: 400 cm x 20 cm x 2.5 cm

To calculate the number of boards, we need to determine the available space in the wagon and divide it by the size of each board.

Calculation Steps:

1. Convert the size of each board to meters: - Length: 400 cm = 4 meters - Width: 20 cm = 0.2 meters - Thickness: 2.5 cm = 0.025 meters

2. Calculate the volume of each board: - Volume = Length x Width x Thickness - Volume = 4 meters x 0.2 meters x 0.025 meters = 0.02 cubic meters

3. Determine the available space in the wagon: - The available space in the wagon is not provided in the question. Please provide the dimensions or capacity of the wagon to proceed with the calculation.

Unfortunately, without the dimensions or capacity of the wagon, we cannot accurately determine the number of boards that can fit inside. Please provide the necessary information, and I will be happy to assist you further.